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Yi Doseong

Type Figure Region Korean Peninsula Time 1368–1422 Also known as Yi Doseong、李豆星

An early Joseon calendrical and astronomical scholar active under Taejo and Taejong, he took part in revising the calendar and compiling astronomical…

Timeline

  1. 1392–1400Kaesong · Hanseong · JoseonAfter Joseon's founding he helped formulate the new dynasty's calendar, organizing earlier astronomical charts and consulting Islamic and Chinese calendrical traditions, laying the groundwork for further revision under Taejong.
  2. 1401–1410Hanseong · HanseongUnder Taejong he continued to direct or take part in celestial observation, computation and calendar correction, maintaining star-chart systems such as the Chart of Celestial Phenomena, providing an astronomical basis for agricultural timing, sacrifices and the dynasty's official calendar.
  3. 1411–1422Hanseong · JoseonAround Sejong's accession he still took part in astronomical and calendrical affairs; his results provided groundwork for more systematic works of the Sejong era such as the Inner Chapters of the Seven Governors' Calculation; he died in 1422.

Sources